/******************************************************************************
 * Spine Runtimes Software License v2.5
 *
 * Copyright (c) 2013-2016, Esoteric Software
 * All rights reserved.
 *
 * You are granted a perpetual, non-exclusive, non-sublicensable, and
 * non-transferable license to use, install, execute, and perform the Spine
 * Runtimes software and derivative works solely for personal or internal
 * use. Without the written permission of Esoteric Software (see Section 2 of
 * the Spine Software License Agreement), you may not (a) modify, translate,
 * adapt, or develop new applications using the Spine Runtimes or otherwise
 * create derivative works or improvements of the Spine Runtimes or (b) remove,
 * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
 * or other intellectual property or proprietary rights notices on or in the
 * Software, including any copy thereof. Redistributions in binary or source
 * form must include this license and terms.
 *
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
 * USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

using UnityEngine;
using System.Collections;
using Spine;

namespace Spine.Unity.Modules {
	public class AtlasRegionAttacher : MonoBehaviour {

		[System.Serializable]
		public class SlotRegionPair {
			[SpineSlot]
			public string slot;

			[SpineAtlasRegion]
			public string region;
		}

		public AtlasAsset atlasAsset;
		public SlotRegionPair[] attachments;

		Atlas atlas;

		void Awake () {
			GetComponent<SkeletonRenderer>().OnRebuild += Apply;
		}


		void Apply (SkeletonRenderer skeletonRenderer) {
			atlas = atlasAsset.GetAtlas();

			AtlasAttachmentLoader loader = new AtlasAttachmentLoader(atlas);

			float scaleMultiplier = skeletonRenderer.skeletonDataAsset.scale;

			var enumerator = attachments.GetEnumerator();
			while (enumerator.MoveNext()) {
				var entry = (SlotRegionPair)enumerator.Current;
				var regionAttachment = loader.NewRegionAttachment(null, entry.region, entry.region);
				regionAttachment.Width = regionAttachment.RegionOriginalWidth * scaleMultiplier;
				regionAttachment.Height = regionAttachment.RegionOriginalHeight * scaleMultiplier;

				regionAttachment.SetColor(new Color(1, 1, 1, 1));
				regionAttachment.UpdateOffset();

				var slot = skeletonRenderer.skeleton.FindSlot(entry.slot);
				slot.Attachment = regionAttachment;
			}
		}

	}
}
